/*******************************************************************************
 * Copyright (c) 2008 The University of York.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Dimitrios Kolovos - initial API and implementation
 * -----------------------------------------------------------------------------
 * ANTLR 3 License
 * [The "BSD licence"]
 * Copyright (c) 2005-2008 Terence Parr
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/
parser grammar EgxParserRules;
options {backtrack=true; output=AST;}

tokens {
	GENERATE;
	TARGET;
	TEMPLATE;
	PARAMETERS;
	DOMAIN;
	OVERWRITE;
	MERGE;
	PATCH;
	APPEND;
	FORMATTER;
}

egxModuleContent
	:	generationRule | erlModuleContent
	;

generationRule
	@after {
		$tree.getExtraTokens().add($ob);
		$tree.getExtraTokens().add($cb);
	}
	:	r='rule'^ rule=NAME ('transform'! formalParameter domain?)?
	ob='{'! generationRuleConstructs cb='}'!
	{$r.setType(GENERATE);}
	;

domain :
	(c='in'^) expressionOrStatementBlock
	{$c.setType(DOMAIN);}
	;
	
target
	:	g='target'^ expressionOrStatementBlock
	{$g.setType(TARGET);}
	;

template
	:	g='template'^ expressionOrStatementBlock
	{$g.setType(TEMPLATE);}
	;

parameters
	:	g='parameters'^ expressionOrStatementBlock
	{$g.setType(PARAMETERS);}
	;

overwrite
	:	g='overwrite'^ expressionOrStatementBlock
	{$g.setType(OVERWRITE);}
	;

merge
	:	g='merge'^ expressionOrStatementBlock
	{$g.setType(MERGE);}
	;

patch
	:	g='patch'^ expressionOrStatementBlock
	{$g.setType(PATCH);}
	;

append
	:	g='append'^ expressionOrStatementBlock
	{$g.setType(APPEND);}
	;

formatter
	:	g='formatter'^ expressionOrStatementBlock
	{$g.setType(FORMATTER);}
	;

generationRuleConstructs
	:	(guard | pre | overwrite | merge | patch | append | template | parameters | target | post | formatter)*
	;
